Replaceable cutting edge with plural tangs

ABSTRACT

A replaceable cutting edge for a material handling implement including a floor forming a leading edge with a plurality of adjacent openings, the cutting edge having an elongated slot for receiving the leading edge of the floor and a plurality of downwardly and rearwardly extending tangs for penetrating the respective openings, a tapered element urged into engagement between the floor and cutting edge to urge the leading edge of the floor into the slot and to simultaneously urge the tangs rearwardly into locking engagement with the respective holes.

nited States Patent [191 olmstrom 1 1 Nov. 5, 1974 REPLACEABLE CUTTINGEDGE WITH PLURAL TANGS [52] U.S. Cl. 37/141 R, 37/142 R, 83/831, 287/103R [51] Int. Cl E021 9/28 [58] Field of Search 37/141 R, 141 T, 142 R,37/142 A [56] References Cited UNITED STATES PATENTS 1,772,624 8/1930Brendlin 37/141 R 1,963,847 6/1934 Jersey 4 37/141 R 2,846,791 8/1958Hosmer et al 37/142 R 3,497,973 3/1970 Campbell .4 37/141 R 3,685,1778/1972 Hahn 37/141 R Black et al 37/141 R Davidukc 37/142 R X PrimaryExaminerRobert E. Pulfrey Assistant Examiner-E. H. Eickholt Attorney,Agent, or Firm-Phillips, Moore, Weissenberger, Lempio & Strabala [57]ABSTRACT A replaceable cutting edge for a material handling implementincluding a floor forming a leading edge with a plurality of adjacentopenings, the cutting edge having an elongated slot for receiving theleading edge of the floor and a plurality of downwardly and rearwardlyextending tangs for penetrating the respective openings, a taperedelement urged into engagement between the floor and cutting edge to urgethe leading edge of the floor into the slot and to simultaneously urgethe tangs rearwardly into locking engagement with the respective holes.

4 Claims, 5 Drawing Figures REPLACEABLE CUTTING EDGE WITH PLURAL- TANGSA BACKGROUND OF THE INVENTION One typical solution to this problem hasbeen to weld a cutting edge of hardened metal onto a leading edge of theimplement. However, when it is necessary to replace the cutting edge,substantial equipment is necessary to make the replacement. For example,a cutting torch is required to remove the worn cutting edge whilewelding equipment must be provided. to secure a replacement cutting edgein place.

SUMMARY OF THE INVENTION Accordingly, it is an object of the presentinvention to provide a replaceable cutting edge for material handlingimplements which may be firmly secured in place during use while alsofacilitating replacement.

It is a further object of the invention to provide such a replaceablecutting member which is secured to the leading edge of a materialhandling implement by means of a slot for receiving the leading edge anda plurality of downwardly and rearwardly tangs penetrating openingsadjacent the leading edge, tapered means urging both the slot and tangson the cutting element into engagement upon the leading edge of theimplement.

Additional objects and advantages of the present invention are madeapparent in the following description having reference to theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS DESCRIPTION OF A PREFERRED EMBODIMENTA portion of a loader bucket is illustrated at 11in FIG. I as anexemplary implement with which the replaceable cutting edge of thepresent invention may be employed. The loader bucket includes a floor 12formed from plate metal and having a leading edge 13. The loader bucketalso has side walls as indicatedat l4 and 16.

I An elongated member 17 having a cutting edge 18 is constructedaccording to the present invention for replaceable mounting upon theleading edge 13 of the bucket floor 12.

In order to firmly secure the cutting member 17 in place upon theleading edge 13 of the bucket floor. the cutting member is formed withan elongated shoulder 19 providing a slot 21 facing rearwardly or awayfrom the cutting edge 18 to receive the leading edge 13 of the floor 12.1

The bucket floor 12 is also formed with a plurality of openings 22adjacent and rearwardly of the leading edge 13. The cutting edge isformed with a like number of downwardly and rearwardly extending tangs23 suitably spaced to be received by the respective openings 22. Thetangs 23 and the slot 21 cooperate in a manner discussed immediatelybelow to firmly secure the cutting member 17 in place upon the implementfloor 12.

The cutting 'member 17 is urged into engagement with the bucket floor 12by means of a plurality of tapered bolts 24. Referring particularly toFIG. 3, it may be seen that a forwardly facing portion of each tang 23is tapered as indicated at 26. Similarly, an opposed surface 27 formedby each of the openings 22 has a similar taper. The bolts 24 penetratethe cutting member 17 for threaded engagement with nuts indicated at 28.Thus, as the bolts are drawn upwardly by tightening of the nuts 28, asviewed in FIG. 3, the cutting member 17 is urged rearwardly or in aleftward direction as viewed in FIG. 3. Accordingly, the slot 21 isurged into engagement with the leading edge 13 of the bucket floor 12.Simultaneously, the tangs 23 are locked within the openings 22 in aposition which may be best seen in FIG. 3.

FIGS. 4 and 5 illustrate a variation of the replaceable cutting memberconstruction of FIGS. 1 3. The cutting member 17' of FIGS. 4 and 5 issimilarly mounted adjacent the leading edge 13' of a bucket floor 12'but is further. adapted for the mounting of spaced apart digging teeth31. For the purpose of receiving the digging teeth 31, the cuttingmember 17 has a somewhat differently figured cutting edge as indicatedat 18. A plurality of adapters 32 are secured to the cutting member 17,for example, by welding, in spaced apart relation to provide mountingsadapted to receive the respective digging teeth 31. The digging teeth 31are secured in place upon the respective adapters by means of retainingpins 33 arranged in vertical bores 34 passing through each tooth 31, therespective adapter 32 and the cutting member 17 adjacent its cuttingedge 18.

What is claimed is:

l. A replaceable cutting member for a material handling implementincluding plate means forming a forwardly facing leading edge for theimplement, a plurality of openings being formed in the plate meansrearwardly of the leading edge, the cutting member forming an elongatedcutting edge and a slot facing away from the cutting edge to receive theleading edge of the plate means, the cutting member having downwardlyand rearwardlyextending tangs for penetrating the respective openings inthe plates means, tapered means engaging the plate means and cuttingmember to urge the leading edge of the plate means into the slot and tosimultaneously urge the tangs rearwardly into locking engagement withthe holes of the plate means.

threadedly secured in place upon the cutting member.

4. The replaceable cutting member of claim 1 comprising a plurality ofdigging teeth arranged along the cutting edge thereof in spaced apartrelation and secured to the cutting member by suitable adapter means andretaining means.

1. A replaceable cutting member for a material handling implementincluding plate means forming a forwardly facing leading edge for theimplement, a plurality of openings being formed in the plate meansrearwardly of the leading edge, the cutting member forming an elongatedcutting edge and a slot facing away from the cutting edge to receive theleading edge of the plate means, the cutting member having downwardlyand rearwardly extending tangs for penetrating the respective openingsin the plates means, tapered means engaging the plate means and cuttingmember to urge the leading edge of the plate means into the slot and tosimultaneously urge the tangs rearwardly into locking engagement withthe holes of the plate means.
 2. The cutting member of claim 1 whereineach of the tangs has a tapered, forwardly facing surface and each ofthe openings is formed with a tapered, rearwardly facing surface, thetapered means comprising a tapered member urged into engagement with thetapered surfaces of each tang and its respective opening.
 3. Thereplaceable cutting member of claim 2 wherein the tapered members arebolts which are threadedly secured in place upon the cutting member. 4.The replaceable cutting member of claim 1 comprising a plurality ofdigging teeth arranged along the cutting edge thereof in spaced apartrelation and secured to the cutting member by suitable adapter means andretaining means.